Elon Musk has confirmed the Tesla Model 3 will be available with a hitch for light towing. Electric cars tow very well as long as range isn't an issue. That's due to the naturally high torque of electric motors and the weight of the batteries which also lowers the center of gravity. If you want to do more than local towing with the Model 3 you should get the 315 mile range package (which is the only configuration available for the first few months of production). The weight of the extra batteries and stiffer springs will provide even more trailer control. For these reasons (weight, torque, center of gravity), electric vehicles tow as well as vehicles a class or two bigger.